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LTC6362 - Precision, Low Power Rail-to-Rail Input/Output Differential Op Amp/SAR ADC Driver
Features
1mA Supply Current
Single 2.8V to 5.25V supply
Fully Differential Input and Output
200μV Max Offset Voltage
260nA Max Input Bias Current
Fast Settling: 550ns to 18-Bit, 8VP-P Output
Low Distortion: –116dBc at 1kHz, 8VP-P
Rail-to-Rail Inputs and Outputs
3.9nV/√Hz Input-Referred Noise
180MHz Gain-Bandwidth Product
34MHz –3dB Bandwidth
Low Power Shutdown: 70μA
8-Lead MSOP and 3mm × 3mm 8-Lead DFN Packages
Typical Application
LTC6362 Typical Application
LTC6362 Typical Application
Description
The LTC®6362 is a low power, low noise differential op amp with rail-to-rail input and output swing that has been optimized to drive low power SAR ADCs. The LTC6362 draws only 1mA of supply current in active operation, and features a shutdown mode in which the current consumption is reduced to 70μA.
The amplifier may be configured to convert a singleended input signal to a differential output signal, and is capable of being operated in an inverting or noninverting configuration.
Low offset voltage, low input bias current, and a stable high impedance configuration make this amplifier suitable for use not only as an ADC driver but also earlier in the signal chain, to convert a precision sensor signal to a balanced (differential) signal for processing in noisy industrial environments.
The LTC6362 is available in an 8-lead MSOP package and also in a compact 3mm × 3mm 8-pin leadless DFN package, and operates with guaranteed specifications over a –40°C to 125°C temperature range.
Applications
16-Bit and 18-Bit SAR ADC Drivers
Single-Ended-to-Differential Conversion
Low Power Pipeline ADC Driver
Differential Line Drivers
Battery-Powered Instrumentation
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